Residential DESIGN POLICY POLICY OUTCOME The Residential Design Policy includes Policy Outcome statements, which are to be achieved by new development. The Policy Outcome statements will: A) encourage residential development which is compatible with and which enhance the City's urban character and amenity, and which minimises environmental impacts; Adopted by Council 12 December 2011 This Policy outlines the City of Boroondara’s expectations with respect to residential development. POLICY APPLICATION The policy builds on and complements ResCode provisions in Clause 55 of the Boroondara Planning Scheme. Development is also required to respond to other relevant sections of the Boroondara Planning Scheme, including the MSS and Local Policies. For more information please contact the Boroondara Statutory Planning Department on 9278 4888 The Policy Outcome statements and the Policy Standards must be used to inform design responses for the following residential developments: These provisions will not apply to apartment style buildings. B) ensure that new development is site responsive and designed to a high standard, and that creative and innovative design solutions are encouraged to prevent the mass, bulk and scale of the development from impacting on adjoining properties and, in particular their secluded private open space; C) encourage the provision of private open space that will facilitate the retention of significant vegetation and allow for the planting of screening vegetation; D) provide for the protection of adjoining properties' secluded private open space from overlooking, overshadowing and visual bulk; and E) ensure that development adjacent to secluded private open space is limited by the site context while providing smaller dwellings that contribute to the diversity of housing stock. Construction or extension of a dwelling where: There are two or more dwellings on the lot; and The proposed works would create two or more dwellings on the lot in a residential zone. Page 1 of 4 City of Boroondara Residential Design Policy December 2011 POLICY STANDARDS The Residential Design Policy includes Policy Standards. These standards provide guidance on how a development may contribute to achieving the Policy Outcome statements. A standard should normally be met. However, if Council is satisfied that an application for an alternative design solution meets the Policy Outcome statements, an alternative design solution may be considered. The standards are: 1) FRONT SETBACK The proposed front building line setback should be a minimum of the average of the setback of existing buildings taken from four properties either side of the site and nine properties opposite the site, or 9 metres whichever is lesser. Corner properties should follow Res Code requirements. 2) SIDE AND REAR SETBACKS The diagram (right) indicates the side and rear setback standards. In this Policy these are referred to as the Boroondara Backyard Setback. The 'ResCode' setback requirements in Clause 55 of the Boroondara Planning Scheme will apply where they provide for a greater setback than required under this Policy. The Backyard Setbacks are to be applied where a proposed development is adjacent to neighbouring secluded private open space (as defined in the Private Open Space section of this Policy). The Backyard Setbacks are: 2.0 metres from the boundary (when not within 0.15 metres of a boundary) up to a height of 3.6 metres 2.0 metres from the boundary at 3.6 metres plus 0.6 metres for every metre of height over 3.6 metres 9.0m BOROONDARA BACKYARD SETBACK 6.9m L O T B O U N D A R Y 3.6m 2.0m NTS 4) WALLS ON BOUNDARIES Where a proposed dwelling is adjacent to the secluded private open space of an adjoining dwelling, a new wall constructed on or within 0.15 metres of a side or rear boundary must be limited to a total length of not more than 7.0 metres (including the garage) on that boundary. For other parts of the development (not adjacent to neighbouring secluded private open space) a new wall constructed on or within 0.15 metres of a side or rear boundary will be considered using the relevant clauses of the Boroondara Planning Scheme, including Clause 55.04-2. These wall length controls must include any wall lengths on the boundary adjacent to the secluded private open space of an adjoining dwelling. 5) BUILDING FORM, BULK AND SCALE A unique design response is required for each development and must respond to the site's context, including: urban character, significant landscapes, neighbouring habitable room windows, variations in natural ground levels, siting of neighbouring buildings, siting of secluded private open space. Page 2 of 4 City of Boroondara Residential Design Policy December 2011 The visual bulk impact of development on neighbouring secluded private open space should be minimised. This can be achieved by a combination of: smaller dwellings; greater upper storey setbacks; limited continuous wall lengths; articulation and variation of setbacks, openings, roof form and materials; the screening of roof top plant equipment or plant located within the roof space of the proposed dwelling; screen planting (supported by a 2 metre ground floor setback); extent to which secluded private open space is actively used; and variations to the standards where it reduces the impact on the neighbouring secluded private open space. The scale of new development should respond to the prevailing building scale of the area, and incorporate building heights, roof forms, roof pitch and building mass found in the immediate locality. In general, new development that includes more than one dwelling should achieve the following: Ensure that a balanced combination of building modulation and façade articulation and detailing is provided to achieve visual interest and richness. This can be achieved through the following techniques: o Breaking down the building into smaller components to highlight various sections such as the building base, middle and top. o Providing adequate setbacks to various sections of the building as needed and in proportion with the corresponding building height. o A balanced mix of recessive and projecting elements within the composition. o Variation to façade surface alignment, complemented by variation to materials, finishes and textures. Avoiding symmetrical presentation where this is not a preferred character feature. Limit overall building height. This can be achieved by stepping buildings with the slope of land, reducing floor to ceiling heights and increasing excavation. Avoid overly exaggerated façade elements. In areas where single storey dwellings have been identified within the Residential Urban Character Study (1996) as having a very important contribution to urban character preference will be given to attic style or similar solutions for developments of more than one storey. The first floor should be: Located and designed to minimise the overlooking and overshadowing of backyards or secluded private open space; Located and designed to minimise the building bulk as viewed from backyards or secluded private open space; Designed to minimise straight wall lengths and increase articulation where it is adjacent to backyards or secluded private open space; Stepped back from the ground floor where adjacent to sensitive interfaces such as adjoining private open space and habitable room windows to avoid the presentation of a single building plane to these interfaces; and Stepped back from the ground floor when facing a street to provide an appropriate transition where there is a difference in height with adjoining dwellings. Side by side development is generally appropriate where it is the predominant urban character of the street. Where side by side development is not the predominant urban character of the street, it may be considered an appropriate design response where it complies with this Policy, including the following standards: The design would reduce the impact on neighbouring secluded private open space compared to multi-storey development in the backyard; The design responds to the predominant urban character of the street (including bulk, roof form and side setbacks); The design response is sensitively and carefully detailed to read as one dwelling Page 3 of 4 City of Boroondara Residential Design Policy December 2011 within the streetscape without added visual bulk or mass; The design provides for solar access to living areas; Is not a lot with a rear orientation to the south as solar access to habitable rooms is poor; The design provides adequate frontage area for landscaping; The design avoids symmetrical presentation where this is not a feature of the street; The design minimises the impact of garages on the streetscape and ensures that garages do not dominate the front façade, by being centrally located or stretching across the entire façade breadth; The design provides adequate front yard private open space for landscaping; and The design provides for at least one ground floor habitable room that faces the street. Where such an outcome is unachievable, ensure that the upper level provides an adequate level of passive surveillance, through additional openings and balconies, and that garages are designed with greater visual transparency and higher quality material and visual interest. 6) SITE COVERAGE The site area covered by all buildings should not exceed 50% of the site. Hard paved areas (including building footprint, pathways, patios and driveways) should not exceed 65% of the site area. The following will be considered when assessing variations to these standards: The existing site coverage and any constraints imposed by existing development or the features of the site. The site coverage of adjacent properties. The effect of the visual bulk of the building and whether this is acceptable in the neighbourhood. The capacity of the drainage network to accommodate additional stormwater. The capacity of the site to absorb run-off. The practicality of achieving pervious surfaces, particularly on lots of less than 500 square metres. Opportunities for landscaping, particularly having regard to tree canopy in the area. 7) CAR PARKING Visitor parking is not to be provided in tandem arrangements or in car stackers. 8) PRIVATE OPEN SPACE Dwellings should provide a minimum private open space area as follows: Vegetation Significance Ranking derived from Residential Urban Character Study Minimum Private Open Space requirements for dwellings Secluded Private Open Space 0 - 2* 50m2 3-4 60m2 Note: Front setback areas should not be treated as secluded private open space. Dwellings should have a minimum secluded private open space dimension of 5 metres. An area may have a minimum dimension of no less than 3 metres, provided that the area occupies no more than 20% of the secluded private open space area, or 10m² whichever is the lesser. Multi-dwelling development with ground floors are required to have their primary area of secluded private open space located at ground level. “Secluded Private Open Space” is defined as that part of private open space primarily intended for outdoor living activities that should enjoy a reasonable degree of privacy (can include spas, swimming pools, decks and balconies). At least one (1) canopy tree is required to be planted in the open space of each proposed dwelling. The amount of private open space required may be reduced where a proposal is located within 400m of public open space. Page 4 of 4 City of Boroondara Residential Design Policy December 2011